falziots/maggot — pull request #1 by damikin (2013-09-27 04:03:25+00:00)
Title: line 299 and 335 in void turn(char input) - just use return, return NULL...

... implies the function is going to return a value, when it does not.

line 376 and 377 - direction[1] is never initialized (you should at least put it to 0 at the start of the function) and direction[0] may not be initialized (same as previous).

line 454 and 455 - iter is used as an int, it should be an int. it's also never initialized. Use a for loop instead of a while for counting. with -std=c99 you can do:
for(int iter = 0; iter < 100; iter++) { x = x / 2 + n / (2 * x); }

i will also suggest looking into switch statements instead of if/else if statements. it can make the code cleaner and easier to read.